This is probably the easiest breakfast prep I have ever made.
Choose a filling.
Spinach, Mushroom Onion and balsamic or Apple, cinnamon, caramelized onion.
Saute' in frying pan until onions are cooked.
Grease muffin tray. I use a coconut oil spray I found at safeway in the baking isle.
Place desired amount of filling in the muffin tin and add egg whites. (I fill muffin tin to the top with egg whites)
Bake at 350 for 12-15 minutes.